golang annot find package “go.uber.org/atomic解决

执行go run 报错

PS C:\goproject\src\pingcaptest\test-log\testLog1> go run main.go
..\..\..\go.uber.org\zap\level.go:24:2: cannot find package "go.uber.org/atomic" in any of:
        C:\go\src\go.uber.org\atomic (from $GOROOT)
        C:\goproject\src\go.uber.org\atomic (from $GOPATH)
..\..\..\go.uber.org\zap\sugar.go:28:2: cannot find package "go.uber.org/multierr" in any of:
        C:\go\src\go.uber.org\multierr (from $GOROOT)
        C:\goproject\src\go.uber.org\multierr (from $GOPATH)

需要的包已经导入了,可能是少依赖

package main

import (
	"net/http"

	"go.uber.org/zap"
)

var logger *zap.Logger

func main() {
	InitLogger()
	defer logger.Sync()
	simpleHttpGet("www.baidu.com")
	simpleHttpGet("https://www.baidu.com")
}

如何处理这时候需要在项目所在目录,go mod init 和下 go mod tidy

S C:\goproject\src\pingcaptest\test-log\testLog1> go env -w GO111MODULE=on
PS C:\goproject\src\pingcaptest\test-log\testLog1> go mod init  testLog1   
go: creating new go.mod: module testLog1
go: to add module requirements and sums:
        go mod tidy
PS C:\goproject\src\pingcaptest\test-log\testLog1>  go mod tidy 
go: finding module for package go.uber.org/zap
go: found go.uber.org/zap in go.uber.org/zap v1.21.0
go: downloading github.com/stretchr/testify v1.7.0
go: downloading go.uber.org/goleak v1.1.11
go: downloading gopkg.in/yaml.v2 v2.2.8
go: downloading github.com/benbjohnson/clock v1.1.0
go: downloading github.com/davecgh/go-spew v1.1.1
go: downloading gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
go: downloading github.com/pmezard/go-difflib v1.0.0
PS C:\goproject\src\pingcaptest\test-log\testLog1> go run main.go
{"level":"error","ts":1659341415.1883502,"caller":"testLog1/main.go:25","msg":"Error fetching url..","url":"www.baidu.com","error":"Get \"www.baidu.com\": unsupported protocol scheme \"\"","stacktrace":"main.simpleHttpGet\n\tC:/goproject/src/pingcaptest/test-log/testLog1/main.go:25\nmain.main\n\tC:/goproject/src/pingcaptest/test-log/testLog1/main.go:14\nruntime.main\n\tC:/go/src/runtime/proc.go:225"}
{"level":"info","ts":1659341415.6377757,"caller":"testLog1/main.go:30","msg":"Success..","statusCode":"200 OK","url":"https://www.baidu.com"}

对go mod 理解还是不够,下面是go mod常见问题处理
https://blog.csdn.net/zzhongcy/article/details/97243826

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